On Tue, 2020-02-04 at 00:50 +0800, Yingjoe Chen wrote: > > diff --git a/include/linux/mfd/mt6397/rtc.h b/include/linux/mfd/mt6397/rtc.h > > index f84b916..fffe34a 100644 > > --- a/include/linux/mfd/mt6397/rtc.h > > +++ b/include/linux/mfd/mt6397/rtc.h > > @@ -18,7 +18,8 @@ > > #define RTC_BBPU_CBUSY BIT(6) > > #define RTC_BBPU_KEY (0x43 << 8) > > > > -#define RTC_WRTGR 0x003c > > +#define RTC_WRTGR_MT6358 0x3a > > +#define RTC_WRTGR_MT6397 0x3c > > > > #define RTC_IRQ_STA 0x0002 > > #define RTC_IRQ_STA_AL BIT(0) > > @@ -57,6 +58,10 @@ > > #define MTK_RTC_POLL_DELAY_US 10 > > #define MTK_RTC_POLL_TIMEOUT (jiffies_to_usecs(HZ)) > > > > +struct mtk_rtc_data { > > + u32 wrtgr; > > +}; > > + > > struct mt6397_rtc { > > struct device *dev; > > struct rtc_device *rtc_dev; > > @@ -66,6 +71,15 @@ struct mt6397_rtc { > > struct regmap *regmap; > > int irq; > > u32 addr_base; > > + const struct mtk_rtc_data *data; > > +}; > > + > > +static const struct mtk_rtc_data mt6358_rtc_data = { > > + .wrtgr = RTC_WRTGR_MT6358, > > +}; > > + > > +static const struct mtk_rtc_data mt6397_rtc_data = { > > + .wrtgr = RTC_WRTGR_MT6397, > > }; > > Hi, > > Putting these in header file doesn't looks right to me. > Who need this? can you move them back to rtc-mt6397.c? > > Joe.C > This could also effect kernel/drivers/power/reset/mt6323-poweroff.c which using same region of RTC registers. There are 2 ways of modification: 1. kernel/drivers/rtc/rtc-mt6397.c implement do_pwroff function and export to mt6323-poweroff.c 2. Just modify mt6323-poweroff.c file to compatible this patch. I mean using RTC_WRTGR_MT6397 to replace RTC_WRTGR. Or modify mt6323-poweroff.c like rtc-mt6397.c